As comfortable to wear as it is compact in a pocket, this ultra-light sleeveless jacket protects against cold blasts. Made in an On/Off light mesh, it helps you breathe through cold and hot temperatures. Body-fit with a diagonal zipper, it allows no discomfort either in posture or at the chin.On/OffThe back is equipped with On/Off 3D postural fibre and the underside of the arm is light mesh, so you can breathe while being protected.Optimal comfortThe zip is positioned diagonally to avoid any discomfort at the chin. Practical and intelligent, the cut is longer at the back than at the front to protect athletes from the wind and cold. It also has a lunar pocket for storing bars, gels... with easy access.PackableIf the jacket is not used, it folds completely into the lunar pocket.